Island



(No Model.)

G. H. KNIGHT.

ORNAMENTAL RING FOR JEWELRY. No. 404,094. Patented Ma 28. 1889.

mwnmw.

N, PETERS. Phmbufhngnpher, Wam'flun. 04c.

UNITED STATES PATENT OFFICE.

GEORGE H. KNIGHT, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO WILLIAM R.LANE & (10., OF SAME PLACE.

ORNAMENTAL RING FOR JEWELRY.

SPECIFICATION forming part of Letters Patent No. 404,094, dated May 28,1889.

Application filed October 27, 1888.

To all whom it may concern.-

Be it known that I, GEORGE H. KNIGHT, a citizen of the United States,residing at Providence, in the State of Rhode Island, have invented anew and useful Improvement in Ornamental Rings for Jewelry, of which thefollowin g is a specification.

The nature of my invention consists in a ring formed from a seamlesstube by turning the end portions of the tube backward, so that the endsthereof will abut against the surface of the tube and the sides will bein contact with each other, thus enabling me to produce fromsingle-plated stock a jointless ring having a practically continuousplated surface.

Figure 1 represents an axial section of a single-plated seamless tubefrom which the ring is to be formed. Fig. 2 represents the same with theend portions of the tube turned over outwardly, so that the ends of saidportions will abut against the surface of the tube and the sides will bein contact with each other. Fig. 3 represents the same with the endsturned inwardly and into contact with the inner surface of the tube andwith each other. Fig. 4 represents the ring shown in Fig.2 when rolleddown to form a band ring. Fig. 5 represents the ring shown in Fig. 3when rolled down to form a ring of half-round crosssection.

In the accompanying drawings, A, Fig. 1, represents a seamless tube,which may be provided either with an interior gold-plated surface, a, orwith a corresponding exterior goldplated surface, the said tube beingreadily formed from plated sheet-metal stock by means of suitable dies.

In forming my improved ring from a seamless tube, A, having an interiorplated surface, a, I turn the ends I) b of the tube outwardly by meansof the proper dies until the said ends are made to toucheach other attheir plated sides and to abut against the former exterior base-metalsurface, 0, of the tube. The jointless plated ring so formed Serial No.289,332. (No model.)

will have a practically continuous plated surface, the ends I) b of thetube being firmly pressed together at the seam d with a plated surfacecontact.

Vhen making a plated band ring, I compress the ring shown in Fig. 2between suitable rolls, so as to spread the same laterally and press theinner surfaces closely together, as shown in Fig. 4., thus forming ajointless plated band ring which will stand the test of dipping in acidand will have all the appearance of a solid-gold band ring.

The tube A can be plated upon its exterior surface and have its endsturned over interi- 6o orly, as shown in Fig. 3, the ends I) I) beingpressed together with the plated surfaces be tween them at the seam d,the said ends abutting against the former interior base-metal surface,0, of the tube; and the ring shown in Fig. 3 can be either rolled downto make a band-ring, as shown in Fig. 4, but in this case with the seam(1 upon the inside of the ring, or to make a ring having ahalf-roundcross-section, as shown in Fig. 5.

I claim as my invention 1. An ornamental ring formed from a seamlessplated tube and having the end portions of the tube turned backward, sothat the ends thereof will abut against the surface of the tube and theexterior plated sides of the turned end portions will be in contact witheach other, substantially as described.

2. An ornamental ring formed from a plated seamless tube and having theends of the tube turned backward to meet at their plated side,substantially as described.

3. An ornamental ring formed from a plated seamless tube and having theends of the tube turned to meet at their plated side and compressed toangular form, substantially as described.

GEORGE H. KNIGHT.

WVitnesses:

SocRATEs SOHOLFIELD, JAMES W. WILLIAMS.

